Weather strip



J 1929. H. E. SMITH ET AL WEATHER STRI P 7 Filed Nov. 9, 1927 Patented June 25, 1929.

UNITED STATES PATENT OFFICE HOWARD E. SMITH AND LOUIS I. JULIEN, OF DETROIT, MICHIGAN, AESIGNORS TO GHAMBERLIN METAL WEATHER STRIP COMPANY, 01 DETROIT, MICHIGAN, A COR- POBATION OF MICHIGAN.

WEATHER STRIP.

Application filed November 9, 1927. Serial No. 232,022.-

This invention relates to weatherstrips and the object of the invention is to rovide a Weatherstrip particularly adapter for use with swinging steel casement windows to provide a seal between the steel window sash and its frame.

Another object of the invention is to provide a Weatherstrip formed of spring metal arranged to bindingly engage the sash frame,

the Weatherstrip being provided with an mtegral extending spring metal flange adapted to engage the window frame when the sash is closed to close the space between the sash and frame.

A further object of the invention is to provide a metal Weatherstrip of spring metal adapted to be clipped onto a steel casement sash. the strip being arranged toallow for variation in width of the sash frame.

A further object of the invention is to provide a Weatherstrip which will provide a seal even when the sash cannot be pulled up tightly into the frame. v

These objects and the several novel features as of the invention are hereinafter more fully described and claimed and the preferred form of construction by which these objects are attained is shown in the accompanying drawings in which- Fig. 1 is an elevation of a swinging steel cascn'ient'window embodying our invention.

Fig. 2 is an enlarged section taken on line 2-2 of Fig. 1 showing the strip as it is moved into contact with the window frame.

Fig. 3 is a similar section taken on line 3-3 of Fig. 1 showing the window sash drawn up into the frame.

Fig. 4 is a section through the strip before being mounted on the sash.

As shown in Fig. 4 the Weatherstrip is formed of sheet bronze which is fairly thin in order to have flexibility and springiness. This bronze strip is rolled to form an arcuate portion 1 crosswise of the strip having an 45 edge 2 which is turned over and is provided with a hemmed edge 3 which is formed of double thickness at this point. The edge 4 of the arcuate portion 1 is formed on a coinparat-ively short radius providing a turned in 5 portion 5 having ahead 6 rolled therein. Ex.-

tending from the head 6 is the sealing flange 7 which tends to spring outwardly and at the outer edge the flange 7 is provided with an outturned portion, 8 having a hemmed or double thickness edge. 9. The Weatherstrip 1s 1nstalled on the window sash as shown in Fig. 2. The portion 4 is enga ed over the outer edge 10 of the steel sash an the hemmed edge 2 is engaged over the edge 11 of the sash.

The portion 1 is made arcuate in form so that the edge 2 may be stretched tightly to engage the head 6 normally tends to extend into the arcuate portion 1 and when installed in the sash, as will be understood from Fig. 2, this bead engages against the inner edge of the sash with sufficient tension to hold the strip on the sash. The head 6 is rounded as shown and the flange 7 which extends from the head 6 is bent on a slight radius at the point where it connectswith the head 6 in order to prevent breakage. It will thus be seen that movement of the flange 7 is absorbed in the rounded head 6 which will take up the sealing action of the flange without tending to break and provides a spring support for the flange 7. \Vhen the strip is assembled on the sash as shown in Fig. 2 the tension of the parts holds the strip in place on the sash and if desired the edge 2 of the strip may be pushed into the putty which holds the glass 12 in place though this is not necessary to hold the strip in place. As the window is swung to the closed fposition the double thickness edge 8 of the ange 7 engages the window frame 13 as shown. As the sash is drawn tightly into the frame this flange 7 is turned to the position shown in Fig. 3 so that it engages the window frame with considerable tension thus preventing passage of Wind, snow or rain between the window sash and frame. lVhen the window is again opened the flange 7 again springs out to the position shown in Fig. 2 and thus the flange 7 will seal the space be tween the sash and frame even when the sash is not fitted tightly into the frame. One of the particular features of this strip is that it may be secured to the sash without drilling holes or changing the sash in any manner and the strip may be readily removed or replaced at any time without inconvenience. The strip may he installed without removing the sash from the frame and when once installed will remain in operative position as long as it is in use.

An essential feature of the invention resides in the provision of a clamping portion to engage over the edge of the window frame to which is attached a weather closing portion. In the form of the invention shown in the accompanying drawing the strip is bent upon itself to form a recess substantially U shaped in cross section to receive the sash edge, the portion of the strip on the outer face of the sash being transversely bowed and of a width greater than the width of the portion engaging the inner face of the sash and normally extending thereover with the terminal edge occupying a plane somewhat beyond the plane occupied by that portion of the strip adapted to engage the inner face of the sash. The sash edge is also formed to provide the projection or seat and in placing the strip on the sash the outer portion must of necessity be sprung outwardly to open the recess to permit assembly of the strip on the sash. The terminal edge of the outer portion is then sprung over the shoulder or ledge to engagement with the seat and thus the strip is retained in place under tension with the inner portion thereof tightly engagingthe inner face of the sash. The use of retaining screws or other means of mechanically fastening the strip in place is thus obviated.

The weather closing portion extends outward'ly from the inner end of the inner edge of the inner sash engaging portion 5 and in closing the sash the terminal edge 8 of this weather closing portion first engages the frame and, as the sash is continued in its closing movement, this edge is caused to move downwardly on the face of the frame and thus the action of this resilient weather closing portion also tends to maintain the strip in lace on the sash.

rom the foregoing description it becomes evident that the device is very simple and eflicient in operation, will not easily get out of order, may be very easily installed and provides a device which accomplishes the objects described.

Having thus fully described our invention, its utility and mode of operation, what we claim and desire to secure by Letters Patent of the United States isv 1. A Weatherstrip comprising a spring metal strip rolled to arcuate form crosswise of the strip and having an inturned edge for engagement with a steel casement sash, the opposite edge of the strip being inturned and terminating in a bead adjacent the center of the arcuate portion adapted to engage behind the steel easement sash and a. flange extending at an angle from the said head and having an outturned terminal edge adapted to yieldably engage the window frame as the sash is closed.

2. A Weatherstrip comprising a spring metal strip rolled to arcuate form in cross section and having an inturned portion termiiniting in a head adjacent the center of the arcuate. portion, and a flange. extending outwardly from the. said head and having an outturncd hemmed terminal edge, the opposite edge of the strip being provided with an inturned hemmed edge.

3. A Weatherstrip comprising a spring metal strip rolled to arcunte form crosswise. of the trip and having an inturned edge for engagement over a steel casement sash, the. opposite edge of the strip being inturned to engage behind the steel casement sash and having a return bent flange for yieldably engaging the window frame as the sash is closed.

4. A Weatherstrip comprising a spring metal strip rolled to arcuate form crosswise of the strip and having an inturned edge, the opposite edge being )rovided with an inturned portion return bent on itself and having a bead rolled into the strip at the return bend, the terminal edge of the return bent portion being outturned as and for the purpose described.

5. A Weatherstrip comprising a spring metal strip rolled to arcuate form in cross section and adapted for engagement over a steel casement sash, the said arcuate portion having an inturned portion engaging the inside of the sash and an extending flange for engaging the window frame as the sash is closed.

6. A Weatherstrip comprising a spring metal strip having an inturned edge for engagement over a steel casement sash, the opposite edge of the strip being inturned to engage behind the steel casement sash and prevent removal of the strip from the sash and an extending spring flange for engaging the window frame as the sash is closed.

7. A metal weather stripping comprising a clamping portion to engage over the edge of a Window frame and a. weather closing portion resiliently attached thereto.

8. In a metal weather st ripping, a clamping portion for the edge of a metal window frame. comprising substantially parallel walls and spring means pressing said walls together, and a weather closing portion resiliently attached to one of said walls.

9. In a metal weather stripping, a clamping portion comprising substantially parallel walls adapted to engage the edge of a metal window frame, said walls formed from a single piece of spring metal and connected by a bend shaped to exert a spring action pressing said walls together, and weather closing means resiliently attached to one of said walls. a

10. In a metal weather strippin a clamping portion comprising substantia ly parallel walls adapted to engage the edge of a metal window frame, said walls formed from a single piece of spring metal and connected by a bend shaped to exert a spring action pressing said walls together, a strengthening lip formed upon the outer edge of one of said walls and weather closing means resiliently attached to the other of said walls.

11. Metal weather stripping for a windowportion in which the parting of the frame and sash is in a direction substantially parallel with the window comprising a clamping portion adapted to engage the edge of the window sash, and a weather closing means resiliently attached to said clamping means and extending at an an le therefrom, said weather closing means a apted to be located in the channel between the frame and sash and to press against said sash to form a weather closure.

12. Metal weather stripping for a windowportion in which the parting of the frame and sash is in a direction substantaially parallel wit-h the window, comprising a clamping portion having two substantially parallel walls formed of the same piece of sheet metal, with a spring bend between said walls adapted to exert spring tension pressing them together,

and a weather closure portion also formed from the same piece of metal and extending in angular resilient relationship to one of said walls, said weather closure member having a portion adapted to lie within the channel between the sash and the frame-of said casement window and abut a portion of said sash to form a weather closure therewith.

13. Metal weather stripping for a windowportion in which the parting of the frame and sash is in a direction substantially parallel with the window, comprising a clamping portion having two substantiall parallel walls formed of the same piece of s ieet metal, with a spring bend between said walls adapted to exert spring tension pressing them together,

and a weather closure portion also formed from the same piece of metal and extending in angular resilient relationship to one of said walls, said weather closure member having a portion adapted to lie within the channel between the sash and the frame of said casement window and abut a portion of said sash to form-a weather closure therewith, and a lip formed upon the outer edge of the other of said walls.

14; A metal weather stripping for a window-portion in which the parting of the frame and sash is in a direction transverse to the plane of the window, comprising clamping means adapted to engage the edge of the metal casement frame, and a resilient weather closure means attached to said clampin means and adapted to extend in substantia ly parallel relationship thereto when depressed by the edge of the sash when closed.

15. A metal weather stripping for a window-portion in which the parting of the frame and sash is in a direction transverse to the plane of the-window, com n'ising a clamping portion formed of two su stantially parallel walls of the same piece of spring metal with a bend of said metal therebetween adapted to exert spring tension on said walls toward each other, a reverse bend of the same metal at the end of one of said walls, and a resilient weather closing member also of the same piece of spring metal resiliently attached to said wall by said reverse bend and adapted to be depressed into substantially parallel relationship with said wall by the sash of said casement window when closed.

16. A metal weather stripping for a window-portion in which the parting of the frame and sash is in a direction transverse to the plane of the window, comprising a clamping portion formed of two substantially pai allel walls of the same piece of spring metal with a bend of said metal therebetween adapted to exert spring tension onsaid walls toward each other, a reverse bend of the same metal at the end of one of said Walls, and a resilient weather closing member also of the same piece of spring metal resiliently attached to said wall by said reverse bend and adapted to be depressed into substantially parallel relationship with said wall by the sash of said casement window when closed and a head on the outer edge of said weather closure member, said head offset from the bend connecting said two walls so as to lie beyond it when the said sash is closed.

17 The combination with a casement sash and frame therefor, the sash being formed with an edge portion in part overlying the frame when in closed relation therewith and having a ledge formed at a distance from and parallel with the terminal edge, of a spring metal weather strip bent upon itself to provide a substantially U shaped portion to engage over the terminal edge of the sash, the portion of the strip on the outer face of the sash edge being adapted to engage over the said ledge to retain the strip in place on the sash edge, and a weather closing portion resiliently attached to the portion of the strip engaging the. inner face of the sash.

18. The combination with a casement sash and frame therefor, the sash bein formed with an edge portion in part overlying the frame when in closed relation therewith and having a ledge formed at a distance from and parallel with the terminal edge, of a spring metal weather strip bent upon itself to provide' a portion to engage over the terminal edge of the sash, the portion of the strip on the outer face of the sash being transversely v a distance beyond bowed and ada ted to be sprung over the said ledge to force t e portion of the strip on the inner face of the sash into engagement therewith under tension and to retain the strip in place on the sash edge, and a weather closing portion attached to that portion of the strip engagin the inner face 0 the sash.

19. Tl ie combination with a casement sash and frame therefor, the sash being formed with an edge portion overlying t 1e frame when in closed relation therewith and further having a part arranged to provide a seat, of a spring metal weather strip bent upon itself to provide a recess to receive the sash edge, the portion of the strip on the outer face of the sash. being formed at its terminal edge to engage the seat and to hold the portion on the inner face of the sash in place under tension, and a weather closing portion'attached to said inner portion of the strip.

20. The combination with a casement sash and frame therefor, the sash being formed with an edge portion overlying the frame when in closed relation therewith and further having a ledge like portion of a form to provide a seat at a distance from the terminal edge, of a spring metal weather strip bent upon itself to provide a recess adapting the same to engage over the sash edge, the ortion of the strip on the outer face of the sas being greater in width than the portion engaging the inner face of the sash and terminating in an edge portion normally lying in a plane at the inner portion whereby,

in placin the strip on the sash with said terminal e ge en agement with the seat, the

'said outer portion is of necessity sprung outwardly forcing the inner )ortion of the strip into tight engagement with the sash under tension, and a weather closing portion connected with the inner edge of said inner portion of the strip.

21. The combination with a window frame and a swinging sash having a ledge like portion providing a seat, of a sash having a ledge like portion providing a seat, of a spring metal weather strip formed with a recess to receive an edge of the sash, the portion of the strip on the outer face of the sash having a terminal edge to engage the said seat and being of such form that in assembling on the sash the strip is held in place under tension, and a weather closing portion extending outwardly from the inner edge of that portion of the strip on the inner face of the sash arranged to frictionally engage the frame as the sash is closed in a manner tending to force the strip onto the sash.

22. A metal weather strip for use in closing the interstice between a window sash and its frame, comprising a portion adapted to be clamped over the edge of the sash, and a portion adapted for yieldable engagement with the frame.

In testimony whereof, we sign this specification.

HOWARD E. SMITH. LOUIS F. J ULIEN.

CERTIFICATE OF CORRECTION.

Patent No. l, 718, 929.

Granted June 25, 1929, to

HOWARD a. sum! ET AL.

out the signature of "Floyd W. Morse"; be read with this correction the case in the Patent Office.

on as follows:

and that the said Letters Patent lhonld therein that the same may specification of the In the drawing, strike conform to the record of Signed and sealed this 6th day of August. A. D. 1929.

(Seal) M. J. lbore, Acting Conniaaioaer of Patents.

CERTIFICATE OF CORRECTION.

Patent No. 1,718,929. Granted June 25, 1929, to

HOWARD E. SMITH ET AL.

it is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: In the drawing, strike out the sigoature of "Floyd W. Morse"; and that the said Letters Patent should be read with this correction therein that the same may conform to the record of the ease in the Patent ()fiice.

Signed and sealed this 6th day of August. A. D. 1929.

M. J. Moore, (Seal) Acting Commissioner of Patents. 

